2301111243 has 6 divisors (see below), whose sum is σ = 3323827364. Its totient is φ = 1534074156.

The previous prime is 2301111221. The next prime is 2301111247. The reversal of 2301111243 is 3421111032.

It is not a de Polignac number, because 2301111243 - 2¹² = 2301107147 is a prime.

It is a super-2 number, since 2×2301111243² = 10590225905322010098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2301111247) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 127839505 + ... + 127839522.

Almost surely, 2^2301111243 is an apocalyptic number.

2301111243 is a deficient number, since it is larger than the sum of its proper divisors (1022716121).

2301111243 is a wasteful number, since it uses less digits than its factorization.

2301111243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255679033 (or 255679030 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 2301111243 is about 47969.8993432340. The cubic root of 2301111243 is about 1320.2186741714.

Adding to 2301111243 its reverse (3421111032), we get a palindrome (5722222275).

The spelling of 2301111243 in words is "two billion, three hundred one million, one hundred eleven thousand, two hundred forty-three".